baber/WOPTO huggingface dataset:
Patent GB-1203061-A (GB)
Title: Improvements in or relating to scr triggering circuits
Inventor: SCOTT JUNIUS DENNY
IPC: B60T13/74
Filed: 1967-09-11
Abstract: 1,203,061. Automatic current control. FMC CORP. Sept.11, 1967 [Sept.14, 1966], No.41410/67. Heading G3R. [Also in Division H2] A circuit for triggering a silicon controlled rectifier comprises a uni-junction transistor TR1, the two bases B1, B2 being coupled across a A.C. supply L10, a Zener diode Z2 being interposed between the A.C. supply and the transistor TR1 so as to convert the A.C. supply into pulses and a phase shifter Fig.3 being included in the connections to the A.C. supply so as to advance the phase of the supply to TR1 relative to that feeding the main thyristors. The phase shifter Fig.3 thus ensures that the main thyristor can be made conductive over a full half cycle even when feeding an inductive load. As described, the main thyristor PSCR-A controls the current in an inductive load formed by a vibratory conveyer feeding a crusher. The current of the three-phase crusher motor is monitored by transformer CT and after rectifying at D10...D13 is used to control the conductivity of a transistor TR2 which in turn controls the firing angle of uni-junction transistor TR1 which provides pulses of appropriate phase to control thyristor CSCR-A which in turn fires power thyristor PSCR-A in such a way as to keep the load constant on the crusher motor. A further alternative control utilizers a permanent magnet Fig.2 fixed to the moving part of the vibratory conveyer adjacent a stationary coil MP57 the output of which is rectified at D21...D24 and used to control the output of a magnetic amplifier comprising high retentivity magnetic rings 47, 48 supplied with A.C. from secondary windings S8 and providing partial half cycles, the negative of which is removed by diode D20, and the leading edge of which is a function of the conveyer output as determined by winding MP57. These pulses are fed to terminal H in Fig.1 so as to control the triggering phase of TR1 and hence that of the main thyristor PSCR-A. The minimum feedrate is set by potentiometer RH1 across a stabilized D.C. supply. Various manual controls RH5... RH9 may be switched in to terminals F, H. An independent load may be controlled by a further main thyristor PSCR-B.
Patent GB-1528763-A (GB)
Title: Carbocyclic-fused pyridine derivatives
IPC: C07D221/04
Filed: 1975-10-09
Abstract: 1528763 Partly hydrogenated cyclopenta[b]- pyridine and quinoline compounds SCHERING AG 9 Oct 1975 [11 Oct 1974] 41421/75 Heading C2C The invention comprises compounds of formula and their salts, wherein R 1  is a C 1-10  hydrocarbon radical possibly substituted by halogen atoms, methylene-dioxy groups and/or C 1-4  alkoxy groups, R 2  is H or Cl, X is CN or a tetrazolyl group, an unsubstituted carbamoyl group, a hydroxyamidocarbonyl group, or a carboxyl, esterified carboxyl or substituted amide group, Y is H, OH or an alkanoyloxy, unsubstituted amino, alkanoylamino, C 1-4  alkyl, carboxyl or alkoxycarbonyl group, A is a carbon-to-carbon bond or -CH 2 -, and R 3  and R 4  are each H or C 1-4  alkyl. In examples, quinoline-5-ones are prepared by reacting R 1 COC#CH with a 1-amino-5,5-R 3 R 4 -cyclohex- 1-en-3-one; and cyclopenta[b]pyridin-5-ones by cyclizing a diethyl-3-carbethoxy-6-R 1 -2-pyridylmethyl-malonate with NaH, followed by H 2 SO 4  treatment of the ethyl 5-oxo-cyclopenta[b]pyridine-6-carboxylate so formed. The cyclic ketones are then converted successively to the corresponding alcohols, chlorides, cyanides, esters, acids and amides. A 3-Cl atom may be introduced into the 5-chlorides with Cl 2 /AlCl 3 . A 5-OH group may be formed by reaction with O 2 , and may subsequently be esterified. A further 5-CO 2 H group may be introduced using a lithio derivative + CO 2 . A 5-amino-5-carboxylic acid is formed by hydrolysing the spirocompound in which X + Y is NHCONHCO; the 5-NH 2  group may be subsequently acylated A 5-alkyl group may be introduced using NaH/alkyl halide. The cyanides react with NaN 3  to form the corresponding tetrazoles. Also prepared is ethyl 2-bromomethyl-6-phenylpyridine-3-carboxylate. Therapeutic compositions having antiinflammatory activity, and which may be administered locally for a variety of skin ailments, and orally for (e.g.) acute and chronic polyarthritis, neurodermatitis, bronchial asthma and hay fever, comprise compounds of the above formula. Tablets, dragees, capsules, solutions, powders, solves, inhalants and aerosols are mentioned.
Patent GB-1477911-A (GB)
Title: Process for the production of hydrogen peroxide
IPC: C01B15/023
Filed: 1974-09-24
Abstract: 1477911 Hydrogen peroxide by the anthraquinone process E I DUPONT DE NEMOURS and CO 24 Sept 1974 [26 Sept 1973] 41547/74 Heading C1A In the anthraquinone process for the production of H 2 O 2 , the anthraquinone is dissolved in an (N, N-substituted) carboxylic acid amide in whick N atom is disubstituted by alkyl or cycle alkyl groups or by an alkylene group having a solubility in water of less than 1% at 25% C. The amide preferably has a formula R 1 R 2 NCOR 3  wherein R 1 , R 2  and R 3  are alkyl groups having 1 to 8 carbon atoms. Preferably R 1  and R 2  are n-butyl and R 3  is ethyl. The anthraquinone is preferably dissolved in a mixture of 1 to 50% by weight of the amide and 50 to 99% of a second solvent, e.g. a hydrocarbon solvent, an alkyl naphthalene or an alkyl benzene or a mixture of alkyl benzene derivatives. The anthraquinone is preferably 2-ethyl anthraquinone or tetrahydro-2-ethyl anthraquinone but other anthraquinones are specified.
Patent GB-1078464-A (GB)
Title: Improvements in and relating to signal generators
Inventor: REINHARDT KARLHEINZ
IPC: H03K3/30
Filed: 1964-10-12
Abstract: 1,078,464. Pulse generators. VAKUTRONIK VEB. Oct. 12, 1964, No. 41566/64. Heading H3T. A push-pull square-wave generator comprises transistors 4, 5 with feedback through a resistor 16 from a transformer 7 the primary of which resonates with a capacitor 6 to determine the operating frequency, the amount of feedback being sufficient to ensure squarewave operation. An RC circuit 8, 10 across the secondary of the transformer provides an output of adjustable phase, which is taken off through an amplifying transistor 12. Outputs are available at terminals 13 and 14 with a controllable phase difference. Resistor 3 provides temperature stabilization of the operating point of the oscillating transistors. The output can be used for controlling the demodulator in dynamic-capacitor amplifiers, and is independent of load fluctuations.
Patent GB-926576-A (GB)
Title: Apparatus for roll forming workpieces
IPC: B21H3/04
Filed: 1961-11-21
Abstract: 926,576. Thread rolling. LANDIS MACHINE CO. Nov. 21, 1961 [Dec. 6, 1960], No. 41581/61. Class 83 (4). A rolling head, suitable for rolling tapered threads on workpieces, comprises a rotatably driven body 20 on which are mounted a plurality of die holders 40, the holders having shafts on which are rotatably mounted dies 58 on axes spaced from the pivotal axes of the holders, and radially projecting arms which are movable circumferentially of the body 20 to pivot the holders 40 and thereby displace the dies 58 radially. The body 20 is rigidly mounted on a motor-driven flange 22, and a ring 35 is slidable along the body 20 on rods 46 such that when the ring 35 is held stationary during rolling, rollers 76 on the die holder arms follow cam slots 82 in the ring to slowly move the dies 58 away from the workpiece axis to produce a tapered thread. When the rollers have reached half-way along the slots the head is stopped and the ring 35 moved away from the work to quickly withdraw the dies radially, the slots being at a steeped angle to effect this. The shafts of the dies are inclined with respect to the axes of the trunnions 38 and 42 by the thread helix angle. These trunnions are lubricated by means of passages 62 and nozzles 66. A stop (Fig. 8, not shown) is used to adjust the limit of movement of the ring 35. A smooth tapered surface may be rolled, the head in this case being moved axially rearwardly.
Patent GB-1439184-A (GB)
Title: Process of preparing a fat emulsion
IPC: A23C21/04
Filed: 1973-09-05
Abstract: 1439184 Fat-containing emulsion; cheese STICHTING BEDRIJVEN VAN HET NEDERLANDS INSTITUUT VOOR ZUIVELONDERZOEK 5 Sept 1973 [5 Sept 1972] 41831/73 Heading A2B  Fat emulsions, which may be employed inter alia as substitutes for milk in the manufacture of cheese, are prepared by mixing fat with an aqueous liquid containing a substance having an emulsifying effect and free from casein miculles, emulsifying the so-formed mixture at a temperature up to 50C by shearing until the fat has an average particle size of 1.6 to 3.5Ám and mixing the emulsion with a milk fraction containing casein having a low fat content. The fat may be milk fat or soy oil. The substance having an emulsifying effect may be a polyoxyethylene sorbitan ester of a fatty acid or egg-protein.
Patent GB-929242-A (GB)
Title: Process for the manufacture of linear polyamides of ª -aminocarboxylic acids
IPC: C08G69/22
Filed: 1960-12-05
Abstract: In a process for the manufacture of linear polyamides and copolyamides of b -amino-carboxylic acids, at least one b -lactam having a hydrogen atom attached to the nitrogen atom and having at least one hydrogen atom in the a -position to the carbonyl group is polymerized in an organic solvent that does not interrupt the anionic polymerization by liberating protons, in the presence of 0,001 to 0,02 mol. of at least one lactamate of a strong base per mol. of the b -lactam and 0,00005 to 0,006 mol. of an N-acyl derivative of a lactam per mol. of the b -lactam. Specified solvents are benzene, xylene, chlorobenzene, dimethyl formamide, dimethyl sulphoxide and tetrahydrofuran.  The lactamates can be formed in situ from the lactam and sodium, sodium hydride, potassium hydride or lithium hydride.  In the examples:-(1) and (2) b -methyl-b -butyrolactam; (3) b -methyl-b -butyrolactam and b -methyl-b -caprolactam and (4) b -methyl-b -butyrolactam, b -methyl-b -caprolactam and b -phenyl-propiolactam are polymerized in the presence of:- (1) and (2) dimethyl sulphoxide, potassium pyrrolidone and acetyl-b -methyl-b -butyrolactam; (3) dimethyl sulphoxide, lithium pyrrolidone and N-acetyl caprolactam and (4) dimethyl sulphoxide, potassium pyrrolidone and N-acetyl pyrrolidone.  Specification 913,645 is referred to.
Patent GB-1481055-A (GB)
Title: Magnetic tape copying
IPC: G11B5/86
Filed: 1974-09-30
Abstract: 1481055 Copying magnetic tape recordings SONY CORP 30 Sept 1974 [1 Oct 1973] 42287/74 Heading G5R In contact copying with prior heating of the slave tape, the heater 33 is brought to its operating temperature and the slave tape is then set in motion and put in thermal communication with the heater, e.g. by movement of the heater or of a shutter between the heater and the tape. As shown, the heater 33 is brought to the required temperature and then raised by pneumatic means 18, 19 to the operative evel opposite the slave tape 1, closing a switch SW1 to energize a solenoid 42 which swings a tape-guide pin 38 from position X to position Y, thereby bringing the slave tape 1 into engagement with the heater 33 and closing a switch SW2 to start a motor driving a tape-drive capstan 9 which also acts as a cooling drum.
Patent GB-1222223-A (GB)
Title: Aromatic polyester based moulding compositions
IPC: C08L67/02
Filed: 1968-09-05
Abstract: 1,222,223. Aromatic polyester moulding compositions. FARBWERKE HOECHST A.G. 5 Sept., 1968 [8 Sept., 1967], No. 42306/68. Heading C3R. A moulding composition comprises (a) a linear saturated polyester of an aromatic dicarboxylic acid and an aliphatic or cycloaliphatic diol; (b) a copolymer of ethylene with an ester of acrylic, methacrylic or ethacrylic acid and an aliphatic alcohol, and (c) an ionic copolymer of an α-olefin or styrene, a mono-, di- or tri-valent salt of an α,#-unsaturated carboxylic acid and, possibly, an α,#- unsaturated acid and/or ester thereof. The copolymers (b) and (c) are each present in an amount of at least 0À01% by weight of the moulding composition and the total amount of copolymers (b) and (c) is 0À05 to 25% by weight of the moulding composition. The components (a), (b) and (c) may be mixed together in powder or molten form and the polyesters may be aftercondensed during or after the mixing process. The moulding composition may be coated with paraffin wax or other wax. Specified polyesters are polyethylene terephthalate which may also contain the residues of isophthalic acid, 2 : 6- naphthalenedicarboxylic acid, adipic acid, 1 : 4- butanediol or neopentylene glycol and polycyclohexane - l : 4 - dimethylol terephthalate. The copolymer (b) may be a random or graft copolymer and preferably has a molecular weight of above 2000 (e.g. 50,000-150,000). The ionic copolymer (c) may also be a random or graft copolymer and preferably has a molecular weight of above 5000. The metal component of copolymer (c) may be as described in Canadian Specification 674,595 (viz. Na, K, Li, Cs, Ag, Hg, Cu, Be, Mg, Ca, Sr, Ba, Cu, Cd, Sn, Pb, Fe, Co, Ni, Zn, Al, Sc or Y). Examples describe compositions of polyethylene terephthalate (particle size 100-750Á), a copolymer of ethylene and ethyl acrylate and a copolymer of ethylene and methacrylic acid neutralized with sodium ions.
Patent GB-1106754-A (GB)
Title: Improvements relating to ammunition belts
IPC: F42B39/08
Filed: 1965-10-11
Abstract: 1,106,754. Ammunition belt for machine gun; ammunition. B. W. K. GOODE. 30 Sept., 1966 [11 Oct., 1965], No. 43119/65. Headings F3A and F3C. An ammunition belt 1 is substantially constructed from flexible, resilient, non-metallic sheet material and is provided integrally with a plurality of ammunition pockets 2. The sheet material may comprise synthetic rubber, neoprene, or a plastics material, the belt being moulded therefrom. A projectile is housed within each pocket, the forward end of the projectile engaging a guide plug (Figs. 4, 5, 6, not shown) and the rear end, in the case of the constructions of Figs. 5 and 6, being encased in a sabot. The propellent charge, percussive cap, anvil and rear plug are also housed in the pockets. The belt may be used with a conventional weapon in which normal cartridges are mounted in the belt but it may also be used with a chamberless weapon in which the pockets act as the chamber of the weapon. As shown in Fig. 3 the belt 1 is fed by a rotor 6 which, in the firing position of a round clamps the belt against a hinged locking plate 5. In a further construction (Fig. 8, not shown) a belt feeding and clamping device comprises a lever and locking plate combination. The belt may be strengthened by the addition of some metallic material.
Patent GB-436334-A (GB)
Abstract: 436,334. Speed indicators operating by sighting terrestial objects. NAAMLOOZE VENNOOTSCHAP NEDERLANDSCHE INSTRUMENTEN COMPAGNIE NEDINSCO, 9, Molensingel, Venlo, Holland. Dec. 3, 1934, No. 34644. Convention date, Dec. 12, 1933. Addition to 371,517. [Class 106 (iii)] [See also Group XXI] Relates to apparatus for sighting and following a moving target as described in the parent Specification in which primary and secondary change-speed gears 1, 3, and 4, 6 driven by a constant-speed motor 9 are automatically brought into operation to move the sighting telescope 38 after a preliminary manual movement is imparted to the sight by a hand wheel 24. In the parent invention, in order to provide for both velocity and acceleration of the target, separate hand wheels were employed to move the adjusting members 11, 13 of the primary and secondary gears. According to the present invention, a single hand wheel 24 is employed, the adjusting member 13 of the secondary gear being connected to the hand wheel by way of shafts 30, 32, 23, and the driven member 6 of this gear being connected to the sight by way of shafts 5, 45, 41, 45. Disengageable clutches 22, 33 are provided between the hand wheel 24 and the adjusting members 11, 13, of the two change - speed gears.
Patent GB-1263720-A (GB)
Title: Oxo process
Inventor: FOSTER GORDON
IPC: C07C45/50
Filed: 1968-09-16
Abstract: 1,263,720. Oxo process. BRITISH PETROLEUM CO. Ltd., and BP CHEMICALS Ltd. 11 Aug., 1969 [16 Sept., 1968], No. 43939/68. Heading C2C.  The hydroformylation of olefines to alcohols and/or aldehydes is effected in the presence of a complex of a Group VIII metal other than Fe, Ni, Pd or Pt containing at least one neutral complexing ligand containing an atom of a Group Vb or VIb element having a single pair of electrons available for donation and a bidentate ligand co-ordinating through O and N and selected from quinaldinic acids, 8-oxyquinolines and salicylaldoximes. Examples convert ethylene to propionaldehyde and propylene, hexene-1, heptene-1 and octene-1 to mixtures of the corresponding straight and branched aldehydes with one more carbon atom.
Patent GB-1587269-A (GB)
Title: Method of winding a flexible strip on an article and apparatus for carrying out the method
IPC: B65H81/08
Filed: 1977-10-21
Abstract: A portion of an insulating tape (3), supported on flexible rollers (10), is wound around a tube (2). The insulating tape (3) runs through a passage slot (4) on the circumference of the tube (2), via a tension-compensating device (7, 8) to the elongate article (1) to be wrapped in the insulating tape (3). A spring-prestressed compensating device (7) for compensating irregular tensions of the insulating tape (3) is arranged inside the tube (2). This device (7) has control rollers (8) for the insulating tape (3). High wrapping speeds can thus be achieved. The preferred sector of use is the wrapping of an electrical conductor. <IMAGE>
Patent GB-1493113-A (GB)
Title: Video discs
IPC: B29D17/00
Filed: 1974-10-15
Abstract: 1493113 Video record discs MCA DISCOVISION Inc 15 Oct 1974 [15 Oct 1973] 44106/74 Heading G5R Video signals are recorded as a line of discrete bumps 64 or depressions in the otherwise flat surface of a relatively thin layer bonded to a thicker flexible backing layer. As shown, the information-bearing surface is covered by a reflective film 68 and a transparent self-levelling protective layer 70.
Patent GB-881282-A (GB)
Title: Improvements in claw pieces for milking machines
IPC: A01J5/04
Filed: 1959-12-30
Abstract: 881,282. Milk claws. MANUS A. B. Dec. 30, 1959 [Jan. 30, 1959], No. 44250/59. Class 5(1). A milk claw comprises a housing consisting of members 1, 2 connected together in an air-tight manner, the claw receiving milk from a teat cup unit via connectors 13, and discharging it to a collecting vessel via the conduit 5. The conduit 5, and therefore the interior of the milk claw, are under vacuum during a normal milking operation. A valve member 9 which is slidable in a bore 7 in the member 1 of the housing, is normally held in the position shown in Fig. 1 by atmospheric pressure on a disc 10 mounted at the lower end of the valve member. However, should one or more teat cups become disconnected from the milk claw, thus breaking the vacuum inside the claw, the valve member drops to fit into the recess 4, thereby closing the conduit 5 and preventing defiled milk from passing to the collecting vessel. Once the teat cups have been replaced, the valve may be opened manually by pressing the disc 10 upwards to engage with the base of the housing. As shown in Fig. 3, the connection between the members 1 and 2, and the construction of the disc 17 are modified. In this instance the disc is removably mounted on the valve member 9, is formed with a flange 18 of reduced thickness, and a thickened marginal portion 19, and is provided on one surface with a radial groove 20. When this latter surface is engaged against the projecting portion 21 of the claw housing the groove 20 forms a passage for a small leak of air from outside the claw piece to the interior thereof, as may be desirable in some instances. When sluicing the apparatus through with a cleansing or disinfecting liquid, it is necessary to hold the valve member in its raised, open position, and this may be effected in the embodiment illustrated in Fig. 3, by swinging the thickened portion 19 through the plane of the disc to engage the bulbous portion 22 of the projection 21.
Patent GB-1074057-A (GB)
Title: Two compartment container
Inventor: HAMELIN JEAN JACQUES
IPC: B65D81/32
Filed: 1965-10-19
Abstract: 1,074,057. Compartmented containers. L' OREAL. Oct. 19, 1965 [Oct. 19, 1964], No- 44304/65. Heading B8D. A bottle of plastics material with an externally screw-threaded neck has a hollow stopper (1), Fig. 1, the lower part of which enters the neck and is closed by a removable base in the form of a plug (2). The stopper 1 is secured to the bottle by means of an internally screwthreaded skirt. Separate materials contained in the stopper and bottle may be mixed by unscrewing the stopper, thereby causing a flange (6), Fig. 2, on the plug (2) to be engaged by the inner end of the neck, the plug being forced downwards into the bottle as unscrewing of the stopper is continued. Both the plug and stopper are of plastics material, the plug at least being resilient.
Patent GB-444125-A (GB)
Abstract: 444,125. Automatic control of temperature. HILL, L. G., 6, Gloucester Terrace, Thorpe Bay, and HYDRELEX ELECTRICAL UTILITIES, Ltd., Garratt Lane, Wandsworth, London. Nov. 16, 1934, No. 32951. [Class 38 (iv)] [See also Group XI] In a water heater provided with electrodes 4 and 5 for heating the water by passing current therethrough the electrodes are concentric and axially adjustable relatively to each other to control the flow of current between them. The outer electrode may be fixed and the inner electrode mounted on a plunger working in a cylinder containing mercury and situated in the tank. The relative position of the electrodes will then be automatically adjusted in order to maintain the temperature in the container constant.
Patent GB-444192-A (GB)
Abstract: 444,192. Reciprocating pumps. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and COCKE, K. J. R., Longrood, Bilton, Rugby. Sept. 14, 1934, No. 26439. [Class 102 (i)] In a pump or engine in which the piston 1 is driven from the crank pin 5 through a slide 10 guided in a member 3 carried by the piston, the slide is set at an angle to the crank pin to cause a relative reciprocation of these parts which is utilized for pumping lubricant, &c. The pump chamber 11 so formed is connected through a passage 14 to suction and discharge ports 13, 20 in the cylinder wall 2. Alternatively two passages for cooperation respectively with suction and discharge passages in the said cylinder wall may be employed.
Patent GB-1285480-A (GB)
Title: Tractor cabin
IPC: B60R21/13
Filed: 1970-09-23
Abstract: 1285480 Moulding foamed articles KLOCKNER-HUMBOLDT-DEUTZ AG 23 Sept 1970 [25 Sept 1969] 45262/70 Heading B5A [Also in Division B7] In a tractor cabin for protecting the drive a roof part 7 which is releasably connected to upright posts 2, 6 comprises a frame 8, Fig. 2, formed of hollow elements 11, 10 embedded in a foamed plastics material 20, Fig. 5, such as polyurethane, the upper side of the roof having a waterproof outer skin. The frame may have projections 13, 22 which may support adjustable or non-adjustable sun visors 15, 23. Bracing elements 17, 18 subject to an outward biasing force fit into openings in the hollow elements 11, 10. Hollow parts 19 of the roof 7 engage with posts 2, 6 of the tractor. The assembled frame is placed in a mould and polyurethane is poured or blown in to initiate a foaming action during which the outer skin is formed on the upper side of the frame and a corrugated surface formed on the under side. Alternatively, a plastics film is stretched over the upper and lower sides of the frame 8 and polyurethane introduced into the space between the film to be bonded thereto. Further bracing elements may replace the sun visors 15, 23 and which may be similarly embedded in polyurethane.